Add product DTO, entity, repository, and module

libs/common/src/modules/product/dtos/index.ts

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+export * from './product.dto';

libs/common/src/modules/product/dtos/product.dto.ts

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+import { IsNotEmpty, IsString } from 'class-validator';
+
+export class ProductDto {
+  @IsString()
+  @IsNotEmpty()
+  public uuid: string;
+
+  @IsString()
+  @IsNotEmpty()
+  public catName: string;
+
+  @IsString()
+  @IsNotEmpty()
+  public prodId: string;
+
+  @IsString()
+  @IsNotEmpty()
+  public prodType: string;
+}

libs/common/src/modules/product/entities/index.ts

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+export * from './product.entity';

libs/common/src/modules/product/entities/product.entity.ts

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+import { Column, Entity } from 'typeorm';
+import { ProductDto } from '../dtos';
+import { AbstractEntity } from '../../abstract/entities/abstract.entity';
+
+@Entity({ name: 'product' })
+export class ProductEntity extends AbstractEntity<ProductDto> {
+  @Column({
+    nullable: false,
+  })
+  catName: string;
+
+  @Column({
+    nullable: false,
+    unique: true,
+  })
+  public prodId: string;
+
+  @Column({
+    nullable: false,
+  })
+  public prodType: string;
+
+  constructor(partial: Partial<ProductEntity>) {
+    super();
+    Object.assign(this, partial);
+  }
+}

libs/common/src/modules/product/product.repository.module.ts

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+import { Module } from '@nestjs/common';
+import { TypeOrmModule } from '@nestjs/typeorm';
+import { ProductEntity } from './entities/product.entity';
+
+@Module({
+  providers: [],
+  exports: [],
+  controllers: [],
+  imports: [TypeOrmModule.forFeature([ProductEntity])],
+})
+export class ProductRepositoryModule {}

libs/common/src/modules/product/repositories/index.ts

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+export * from './product.repository';

libs/common/src/modules/product/repositories/product.repository.ts

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+import { DataSource, Repository } from 'typeorm';
+import { Injectable } from '@nestjs/common';
+import { ProductEntity } from '../entities/product.entity';
+
+@Injectable()
+export class ProductRepository extends Repository<ProductEntity> {
+  constructor(private dataSource: DataSource) {
+    super(ProductEntity, dataSource.createEntityManager());
+  }
+}